/**
 * Copyright 2007-2010 非也
 * All rights reserved. 
 * 
 * This library is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License v3 as published by the Free Software
 * Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along
 * with this library; if not, see http://www.gnu.org/licenses/lgpl.html.
 *
 */
package org.fireflow2.designer.eclipse.commands;

import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.gef.commands.Command;
import org.fireflow2.designer.eclipse.modelwrapper.NodeWrapper;
import org.fireflow2.designer.eclipse.modelwrapper.Wrapper;

/**
 *
 * @author 非也 nychen2000@163.com
 * Fire Workflow 官方网站：www.firesoa.com 或者 www.fireflow.org
 *
 */
public class OrphanChildCommand extends Command {
	protected Wrapper parentWrapper = null;
	protected Rectangle oldBox = null;
	protected NodeWrapper nodeWrapper = null;
	
	public void setNodeWrapper(NodeWrapper nodeWrapper){
		this.nodeWrapper = nodeWrapper;
	}
	
	public void execute(){
		parentWrapper = this.nodeWrapper.getParent();
		if (parentWrapper==null){
			return ;
		}
		oldBox = nodeWrapper.getBox();
		
		parentWrapper.orphanChild(nodeWrapper);
	}
	
	public void redo(){
		if (parentWrapper==null){
			return ;
		}
		parentWrapper.orphanChild(nodeWrapper);
	}
	
	public void undo(){
		if (parentWrapper==null){
			return ;
		}
		nodeWrapper.setBox(oldBox);
		parentWrapper.acceptChild(nodeWrapper);
	}
}
